/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet_Admin_Product;

import bean_Admin_Product.ProductBean;
import bean_Admin_Product.connectSQL;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author KaiLee
 */
@WebServlet(name = "DeleteServlet", urlPatterns = {"/DeleteServlet"})
public class DeleteServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /*
             * TODO output your page here. You may use following sample code.
             */
            String[] deleterecord = null;
            connectSQL conn = new connectSQL();
            ArrayList<ProductBean> list = new ArrayList<ProductBean>();
            list = conn.getProduct();
            String delStr = "";
            deleterecord = request.getParameterValues("chon");
            if (deleterecord != null) {
                for (int k = 0; k < deleterecord.length; k++) {
                    delStr += deleterecord[k] + ",";
                }
                delStr = delStr.substring(0, delStr.length() - 1);
            }
            String[] id = delStr.split(",");
            int vitri = 0;
            for(int i=0;i<list.size();i++){
                if(list.get(i).getId() == Integer.parseInt(id[id.length-1])){
                    vitri = i;
                }
            }
            int p = (vitri - id.length - 1)/3 +1;
            for(int i=0;i<id.length;i++){
                conn.deleteProduct(id[i]);
            }
            list = conn.getProductInPage(p, 3);
            HttpSession session = request.getSession();
            session.putValue("list", list);
            response.sendRedirect("AdminProduct.jsp");
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
